FIELD: machine engineering, possibly manufacture of gas turbine members having blades for guiding gas flow.
SUBSTANCE: method comprises steps of casting blades, cutting inner duct for cooling agent in cast blades; possibly forming in blade starting opening beginning from which said inner duct is cut. Formed blades are used for making member of gas turbine having large number of blades. In variant of invention member of gas turbine is cast together with blades and inner duct is cut in each cast blade, possibly by electric erosion working with use of electric-discharge wire.
EFFECT: enhanced accuracy of position and geometry of inner duct of blade.
20 cl, 4 dwg
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